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149 lines
5.4 KiB
Fortran
149 lines
5.4 KiB
Fortran
!
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! Parallel Sparse BLAS version 3.5
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! (C) Copyright 2006, 2010, 2015, 2017
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! Salvatore Filippone Cranfield University
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! Alfredo Buttari CNRS-IRIT, Toulouse
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions
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! are met:
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions, and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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! 3. The name of the PSBLAS group or the names of its contributors may
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! not be used to endorse or promote products derived from this
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! software without specific written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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! ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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! TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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! BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!
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!
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module psb_s_genpde_mod
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use psb_base_mod, only : psb_spk_, psb_ipk_, psb_desc_type,&
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& psb_sspmat_type, psb_s_vect_type, szero,&
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& psb_s_base_sparse_mat, psb_s_base_vect_type, psb_i_base_vect_type
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interface
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function s_func_3d(x,y,z) result(val)
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import :: psb_spk_
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real(psb_spk_), intent(in) :: x,y,z
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real(psb_spk_) :: val
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end function s_func_3d
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end interface
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interface psb_gen_pde3d
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subroutine psb_s_gen_pde3d(ictxt,idim,a,bv,xv,desc_a,afmt,&
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& a1,a2,a3,b1,b2,b3,c,g,info,f,amold,vmold,imold,nrl)
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!
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! Discretizes the partial differential equation
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!
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! a1 dd(u) a2 dd(u) a3 dd(u) b1 d(u) b2 d(u) b3 d(u)
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! - ------ - ------ - ------ + ----- + ------ + ------ + c u = f
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! dxdx dydy dzdz dx dy dz
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!
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! with Dirichlet boundary conditions
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! u = g
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!
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! on the unit cube 0<=x,y,z<=1.
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!
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!
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! Note that if b1=b2=b3=c=0., the PDE is the Laplace equation.
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!
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import :: psb_ipk_, psb_desc_type, psb_sspmat_type, psb_s_vect_type, &
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& s_func_3d, psb_s_base_sparse_mat, psb_s_base_vect_type, psb_i_base_vect_type
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implicit none
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procedure(s_func_3d) :: a1,a2,a3,c,b1,b2,b3,g
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integer(psb_ipk_) :: idim
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type(psb_sspmat_type) :: a
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type(psb_s_vect_type) :: xv,bv
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type(psb_desc_type) :: desc_a
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integer(psb_ipk_) :: ictxt, info
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character(len=*) :: afmt
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procedure(s_func_3d), optional :: f
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class(psb_s_base_sparse_mat), optional :: amold
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class(psb_s_base_vect_type), optional :: vmold
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class(psb_i_base_vect_type), optional :: imold
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integer(psb_ipk_), optional :: nrl
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end subroutine psb_s_gen_pde3d
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end interface
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interface
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function s_func_2d(x,y) result(val)
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import :: psb_spk_
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real(psb_spk_), intent(in) :: x,y
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real(psb_spk_) :: val
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end function s_func_2d
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end interface
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interface psb_gen_pde2d
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subroutine psb_s_gen_pde2d(ictxt,idim,a,bv,xv,desc_a,afmt,&
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& a1,a2,b1,b2,c,g,info,f,amold,vmold,imold,nrl)
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!
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! Discretizes the partial differential equation
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!
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! a1 dd(u) a2 dd(u) b1 d(u) b2 d(u)
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! - ------ - ------ + ----- + ------ + c u = f
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! dxdx dydy dx dy
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!
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! with Dirichlet boundary conditions
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! u = g
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!
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! on the unit square 0<=x,y<=1.
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!
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!
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! Note that if b1=b2=c=0., the PDE is the Laplace equation.
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!
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import :: psb_ipk_, psb_desc_type, psb_sspmat_type, psb_s_vect_type,&
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& s_func_2d, psb_s_base_sparse_mat, psb_s_base_vect_type, psb_i_base_vect_type
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implicit none
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procedure(s_func_2d) :: a1,a2,c,b1,b2,g
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integer(psb_ipk_) :: idim
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type(psb_sspmat_type) :: a
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type(psb_s_vect_type) :: xv,bv
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type(psb_desc_type) :: desc_a
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integer(psb_ipk_) :: ictxt, info
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character(len=*) :: afmt
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procedure(s_func_2d), optional :: f
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class(psb_s_base_sparse_mat), optional :: amold
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class(psb_s_base_vect_type), optional :: vmold
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class(psb_i_base_vect_type), optional :: imold
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integer(psb_ipk_), optional :: nrl
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end subroutine psb_s_gen_pde2d
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end interface
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contains
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function s_null_func_3d(x,y,z) result(val)
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real(psb_spk_), intent(in) :: x,y,z
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real(psb_spk_) :: val
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val = szero
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end function s_null_func_3d
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function s_null_func_2d(x,y) result(val)
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real(psb_spk_), intent(in) :: x,y
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real(psb_spk_) :: val
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val = szero
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end function s_null_func_2d
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end module psb_s_genpde_mod
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